PMC:1448208 / 473-483 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T911","span":{"begin":5,"end":9},"obj":"VBN"},{"id":"T916","span":{"begin":1,"end":4},"obj":"VBZ"}],"relations":[{"id":"R69","pred":"aux","subj":"T916","obj":"T911"}],"text":" has been "}